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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
12/10/2020 |
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Actualizado : |
12/10/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
GUTIÉRREZ, F.; GALLEGO, F.; PARUELO, J.; RODRIGUEZ, C. |
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Afiliación : |
FRANCISCO GUTIÉRREZ, Grupo de Ecología de Pastizales, Instituto de Ecología y Ciencias Ambientales, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, Uruguay.; FEDERICO GALLEGO, Grupo de Ecología de Pastizales, Instituto de Ecología y Ciencias Ambientales, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, Uruguay.; JOSÉ PARUELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Grupo de Ecología de Pastizales, Instituto de Ecología y Ciencias Ambientales, UdelaR, Montevideo; Facultad de Agronomía and IFEVA, UBA and CONICET, Argentina.; CLAUDIA RODRIGUEZ, Grupo de Ecología de Pastizales, Instituto de Ecología y Ciencias Ambientales, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, Uruguay. |
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Título : |
Damping and lag effects of precipitation variability across trophic levels in Uruguayan rangelands. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Agricultural Systems, November 2020, Volume 185, Article number 102956. Doi: https://doi.org/10.1016/j.agsy.2020.102956 |
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DOI : |
10.1016/j.agsy.2020.102956 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 21 February 2020/ Revised 12 September 2020,/Accepted 14 September 2020/ Available online 22 September 2020. |
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Contenido : |
ABSTRACT: Extensive livestock production is one of the activities that, without requiring habitat conversion, contributes to
grassland conservation and human well-being. In Uruguay, approximately 60% of the land is covered by natural temperate grasslands, which are entirely devoted to extensive livestock production, mainly cattle and sheep. In this study we described the spatial and temporal variability of aboveground net primary productivity (ANPP), net secondary productivity (NSP) and trophic efficiency (TEf) of temperate grasslands in two geomorphological regions of Uruguay (Basaltic ?Cuesta? and Eastern Hills), and explored their relationship with the mean andannual precipitation (MAP and PPT, respectively). Specifically, we asked whether Uruguayan grasslands are able to damp precipitation variability at the levels of vegetation and herbivores. Additionally, we searched for lag effects of precipitation on primary and secondary productivity. The study period included seven growing seasons, from 2005 to 2012. PPT, ANPP and NSP were calculated monthly for 32 sections (administrative units) of both regions, and aggregated at the growing season level. NSP-related data included not only livestock numbers, but also livestock births, mortality and transportation, as well as milk and wool production. ANPP showed a clear inter-regional difference, the Eastern Hills region was more productive (69,814 MJ.ha?1.y?1) than the Basaltic ?Cuesta? (60,762 MJ.ha?1.y?1). NSP showed no inter-regional differences (742 vs. 754 MJ.ha?1.y?1, respectively) and TEf was higher in Basaltic ?Cuesta? (0.0125) than in Eastern Hills (0.0107). As expected, ANPP was
strongly determined by the amount of rainfall, both in space and time. Although we did not find a relationship between current year NSP and ANPP, secondary productivity was positively related with PPT and ANPP with a two-year lag in Basaltic ?Cuesta?. Also, we found that the interannual variabilities of ANPP and NSP were, respectively, 60 and 40% lower than the variability of precipitation, but contrary to our expectation, NSP was 40% more variable than ANPP. Only 1.17% of the energy captured by grasslands in Uruguay is converted into
domestic herbivore production, a value close to the average reported for other grasslands and savannas. MenosABSTRACT: Extensive livestock production is one of the activities that, without requiring habitat conversion, contributes to
grassland conservation and human well-being. In Uruguay, approximately 60% of the land is covered by natural temperate grasslands, which are entirely devoted to extensive livestock production, mainly cattle and sheep. In this study we described the spatial and temporal variability of aboveground net primary productivity (ANPP), net secondary productivity (NSP) and trophic efficiency (TEf) of temperate grasslands in two geomorphological regions of Uruguay (Basaltic ?Cuesta? and Eastern Hills), and explored their relationship with the mean andannual precipitation (MAP and PPT, respectively). Specifically, we asked whether Uruguayan grasslands are able to damp precipitation variability at the levels of vegetation and herbivores. Additionally, we searched for lag effects of precipitation on primary and secondary productivity. The study period included seven growing seasons, from 2005 to 2012. PPT, ANPP and NSP were calculated monthly for 32 sections (administrative units) of both regions, and aggregated at the growing season level. NSP-related data included not only livestock numbers, but also livestock births, mortality and transportation, as well as milk and wool production. ANPP showed a clear inter-regional difference, the Eastern Hills region was more productive (69,814 MJ.ha?1.y?1) than the Basaltic ?Cuesta? (60,762 MJ.ha?1.y?1). NSP showed no inter-... Presentar Todo |
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Palabras claves : |
ABOVE-GROUND NET PRIMARY PRODUCTIVITY; INTERANNUAL VARIABILITY; LIVESTOCK SYSTEMS; NET SECONDARY PRODUCTIVITY; TROPICAL EFFICIENCY. |
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Thesagro : |
SISTEMAS GANADEROS. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03300naa a2200253 a 4500
001 1061412
005 2020-10-12
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1016/j.agsy.2020.102956$2DOI
100 1 $aGUTIÉRREZ, F.
245 $aDamping and lag effects of precipitation variability across trophic levels in Uruguayan rangelands.$h[electronic resource]
260 $c2020
500 $aArticle history: Received 21 February 2020/ Revised 12 September 2020,/Accepted 14 September 2020/ Available online 22 September 2020.
520 $aABSTRACT: Extensive livestock production is one of the activities that, without requiring habitat conversion, contributes to grassland conservation and human well-being. In Uruguay, approximately 60% of the land is covered by natural temperate grasslands, which are entirely devoted to extensive livestock production, mainly cattle and sheep. In this study we described the spatial and temporal variability of aboveground net primary productivity (ANPP), net secondary productivity (NSP) and trophic efficiency (TEf) of temperate grasslands in two geomorphological regions of Uruguay (Basaltic ?Cuesta? and Eastern Hills), and explored their relationship with the mean andannual precipitation (MAP and PPT, respectively). Specifically, we asked whether Uruguayan grasslands are able to damp precipitation variability at the levels of vegetation and herbivores. Additionally, we searched for lag effects of precipitation on primary and secondary productivity. The study period included seven growing seasons, from 2005 to 2012. PPT, ANPP and NSP were calculated monthly for 32 sections (administrative units) of both regions, and aggregated at the growing season level. NSP-related data included not only livestock numbers, but also livestock births, mortality and transportation, as well as milk and wool production. ANPP showed a clear inter-regional difference, the Eastern Hills region was more productive (69,814 MJ.ha?1.y?1) than the Basaltic ?Cuesta? (60,762 MJ.ha?1.y?1). NSP showed no inter-regional differences (742 vs. 754 MJ.ha?1.y?1, respectively) and TEf was higher in Basaltic ?Cuesta? (0.0125) than in Eastern Hills (0.0107). As expected, ANPP was strongly determined by the amount of rainfall, both in space and time. Although we did not find a relationship between current year NSP and ANPP, secondary productivity was positively related with PPT and ANPP with a two-year lag in Basaltic ?Cuesta?. Also, we found that the interannual variabilities of ANPP and NSP were, respectively, 60 and 40% lower than the variability of precipitation, but contrary to our expectation, NSP was 40% more variable than ANPP. Only 1.17% of the energy captured by grasslands in Uruguay is converted into domestic herbivore production, a value close to the average reported for other grasslands and savannas.
650 $aSISTEMAS GANADEROS
653 $aABOVE-GROUND NET PRIMARY PRODUCTIVITY
653 $aINTERANNUAL VARIABILITY
653 $aLIVESTOCK SYSTEMS
653 $aNET SECONDARY PRODUCTIVITY
653 $aTROPICAL EFFICIENCY
700 1 $aGALLEGO, F.
700 1 $aPARUELO, J.
700 1 $aRODRIGUEZ, C.
773 $tAgricultural Systems, November 2020, Volume 185, Article number 102956. Doi: https://doi.org/10.1016/j.agsy.2020.102956
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INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
11/08/2016 |
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Actualizado : |
12/03/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
ROCHA, C.M.L.; VELLICCE, G.R.; GARCÍA, M.G.; PARDO, E.M.; RACEDO, J.; PERERA, M.F.; DE LUCÍA, A.; BONNECARRERE, M.; GERMAN, S.; MARCELINO, F.; LEDESMA, F.; REZNIKOV, S.; PLOPER, D.L.; WELIN, B.; CASTAGNARO, A.P. |
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Afiliación : |
CARLA MARÍA LOURDES ROCHA, Estación Experimental Agroindustrial Obispo Colombres, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Tecnología Agroindustrial del Noroeste Argentino; GABRIEL RICARDO VELLICCE, Estación Experimental Agroindustrial Obispo Colombres, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Tecnología Agroindustrial del Noroeste Argentino; MARÍA GABRIELA GARCÍA, Estación Experimental Agroindustrial Obispo Colombres, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Tecnología Agroindustrial del Noroeste Argentino; ESTEBAN MARIANO PARDO, Estación Experimental Agroindustrial Obispo Colombres, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Tecnología Agroindustrial del Noroeste Argentino; JOSEFINA RACEDO, Estación Experimental Agroindustrial Obispo Colombres, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Tecnología Agroindustrial del Noroeste Argentino; MARÍA FRANCISCA PERERA, Estación Experimental Agroindustrial Obispo Colombres, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Tecnología Agroindustrial del Noroeste Argentino; ADRIÁN DE LUCÍA, INTA (Instituto Nacional de Tecnología Agropecuaria) - Cerro Azul; MARIA VICTORIA BONNECARRERE MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SILVIA ELISA GERMAN FAEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FRANCISMAR MARCELINO, EMBRAPA Soja; FRANCISCO LEDESMA, Estación Experimental Agroindustrial Obispo Colombres, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Tecnología Agroindustrial del Noroeste Argentino; SEBASTIÁN REZNIKOV, Estación Experimental Agroindustrial Obispo Colombres, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Tecnología Agroindustrial del Noroeste Argentino; LEONARDO DANIEL PLOPER, Estación Experimental Agroindustrial Obispo Colombres, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Tecnología Agroindustrial del Noroeste Argentino; BJORN WELIN, Estación Experimental Agroindustrial Obispo Colombres, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Tecnología Agroindustrial del Noroeste Argentino; ATILIO PEDRO CASTAGNARO, Estación Experimental Agroindustrial Obispo Colombres, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Tecnología Agroindustrial del Noroeste Argentino. |
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Título : |
Use of AFLP markers to estimate molecular diversity of Phakopsora pachyrhizi. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Electronic Journal of Biotechnology, 2015, v. 18, no. 6, p. 439-444. OPEN ACCESS. |
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DOI : |
10.1016/j.ejbt.2015.06.007 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 24 April 2015. Accepted 23 September 2015. Available online 28 October 2015. |
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Contenido : |
ABSTRACT.
Background: Asian soybean rust (SBR) caused by Phakopsora pachyrhizi Syd. & Syd., is one of the main diseases affecting soybean and has been reported as one of the most economically important fungal pathogens worldwide. Knowledge of the genetic diversity of this fungus should be considered when developing resistance breeding strategies. We aimed to analyze the genetic diversity of P. pachyrhizi combining simple sampling with a powerful and reproducible molecular technique. Results: We employed Amplified Fragment Length Polymorphism (AFLP) technique for the amplification of P. pachyrhizi DNA extracted from naturally SBR-infected plants from 23 production fields. From a total of 1919
markers obtained, 77% were polymorphic. The high percentage of polymorphism and the Nei's genetic diversity coefficient (0.22) indicated high pathogen diversity. Analysis of molecular variance showed higher genetic variation within countries than among them. Temporal analysis showed a higher genetic variation within a year than between years. Cluster, phylogenetic and principal co-ordinate analysis showed that samples group by year of collection and then by country sampled. Conclusions: The study proposed combining a simple collection of urediniospore with a subsequent analysis by AFLP was useful to examine the molecular polymorphism of samples of P. pachyrhizi collected and might have a significant contribution to the knowledge of its genetic diversity. Also, AFLP analysis is an important and potent molecular tool for the study of genetic diversity and could be useful to carry out wider genetic diversity studies.
© 2015 Pontificia Universidad Católica de Valparaíso. Production and hosting by Elsevier B.V. All rights reserve MenosABSTRACT.
Background: Asian soybean rust (SBR) caused by Phakopsora pachyrhizi Syd. & Syd., is one of the main diseases affecting soybean and has been reported as one of the most economically important fungal pathogens worldwide. Knowledge of the genetic diversity of this fungus should be considered when developing resistance breeding strategies. We aimed to analyze the genetic diversity of P. pachyrhizi combining simple sampling with a powerful and reproducible molecular technique. Results: We employed Amplified Fragment Length Polymorphism (AFLP) technique for the amplification of P. pachyrhizi DNA extracted from naturally SBR-infected plants from 23 production fields. From a total of 1919
markers obtained, 77% were polymorphic. The high percentage of polymorphism and the Nei's genetic diversity coefficient (0.22) indicated high pathogen diversity. Analysis of molecular variance showed higher genetic variation within countries than among them. Temporal analysis showed a higher genetic variation within a year than between years. Cluster, phylogenetic and principal co-ordinate analysis showed that samples group by year of collection and then by country sampled. Conclusions: The study proposed combining a simple collection of urediniospore with a subsequent analysis by AFLP was useful to examine the molecular polymorphism of samples of P. pachyrhizi collected and might have a significant contribution to the knowledge of its genetic diversity. Also, AFLP analysis is an impor... Presentar Todo |
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Palabras claves : |
ASIAN SOYBEAN RUST; GENETIC VARIATION; GLYCINE MAX; MOLECULAR MARKERS. |
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Thesagro : |
MARCADORES MOLECULARES; SOJA; VARIACION GENETICA. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/5850/1/Rocha-C.M.-2015.-Electr.Jr.Biotech.-v18-p.439-444.pdf
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Marc : |
LEADER 02957naa a2200397 a 4500
001 1055241
005 2019-03-12
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1016/j.ejbt.2015.06.007$2DOI
100 1 $aROCHA, C.M.L.
245 $aUse of AFLP markers to estimate molecular diversity of Phakopsora pachyrhizi.$h[electronic resource]
260 $c2015
500 $aArticle history: Received 24 April 2015. Accepted 23 September 2015. Available online 28 October 2015.
520 $aABSTRACT. Background: Asian soybean rust (SBR) caused by Phakopsora pachyrhizi Syd. & Syd., is one of the main diseases affecting soybean and has been reported as one of the most economically important fungal pathogens worldwide. Knowledge of the genetic diversity of this fungus should be considered when developing resistance breeding strategies. We aimed to analyze the genetic diversity of P. pachyrhizi combining simple sampling with a powerful and reproducible molecular technique. Results: We employed Amplified Fragment Length Polymorphism (AFLP) technique for the amplification of P. pachyrhizi DNA extracted from naturally SBR-infected plants from 23 production fields. From a total of 1919 markers obtained, 77% were polymorphic. The high percentage of polymorphism and the Nei's genetic diversity coefficient (0.22) indicated high pathogen diversity. Analysis of molecular variance showed higher genetic variation within countries than among them. Temporal analysis showed a higher genetic variation within a year than between years. Cluster, phylogenetic and principal co-ordinate analysis showed that samples group by year of collection and then by country sampled. Conclusions: The study proposed combining a simple collection of urediniospore with a subsequent analysis by AFLP was useful to examine the molecular polymorphism of samples of P. pachyrhizi collected and might have a significant contribution to the knowledge of its genetic diversity. Also, AFLP analysis is an important and potent molecular tool for the study of genetic diversity and could be useful to carry out wider genetic diversity studies. © 2015 Pontificia Universidad Católica de Valparaíso. Production and hosting by Elsevier B.V. All rights reserve
650 $aMARCADORES MOLECULARES
650 $aSOJA
650 $aVARIACION GENETICA
653 $aASIAN SOYBEAN RUST
653 $aGENETIC VARIATION
653 $aGLYCINE MAX
653 $aMOLECULAR MARKERS
700 1 $aVELLICCE, G.R.
700 1 $aGARCÍA, M.G.
700 1 $aPARDO, E.M.
700 1 $aRACEDO, J.
700 1 $aPERERA, M.F.
700 1 $aDE LUCÍA, A.
700 1 $aBONNECARRERE, M.
700 1 $aGERMAN, S.
700 1 $aMARCELINO, F.
700 1 $aLEDESMA, F.
700 1 $aREZNIKOV, S.
700 1 $aPLOPER, D.L.
700 1 $aWELIN, B.
700 1 $aCASTAGNARO, A.P.
773 $tElectronic Journal of Biotechnology, 2015$gv. 18, no. 6, p. 439-444. OPEN ACCESS.
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